Meeting Hosts and Concurrent Attendee Licensing Model
Although, using the Named Hosts licensing model, there are restrictions to assigning meeting hosts to rooms, there are fewer restrictions with the Concurrent Attendee licensing model.
In the Concurrent Attendee model, it is possible to assign participants as host in a room who are not members of the Meeting Hosts group. As there is no limit in the number of meeting hosts allowed with this licensing model, there are no restrictions to the number of users who are assigned as host in a room (whether or not they are member of the Meeting Hosts group), as long as the total number of concurrent users of all types does not exceed the license limit for the account.
With the Named Hosts licensing model, only users who are member of the Meeting Hosts group may be assigned as host in the web interface.